Adjustable quill



Jun 11, 1946.

C. O. BRUESTLE ADJUSTABLE QUILL Filed 001',- 25, 1945 fiugenr; I Cari0.57LL66ZZ5 Patented June 11, 1946 Carl 0. Bruestle, B'ahway, N. J'assignor to Borg- Warner Corporation, Chicago, 111., a corporation ofIllinois aspiration October 25, 1943, Serial No. 507,579

6 Claims. 1 This invention relates to wire weaving machines and moreparticularly to an improved wire quill assembly for such machines.

It is an object of this invention to provide a.

wire quill assembly for a weaving machine, somewhat similar to the wirequill assembly shown in the patent to I. B. Hill No, 2,268,658, issuedJanu- 'ary 6, 1942, but With certain improvements therein.

It is a further object of this invention to provide a quill which isadjustable axially or longitudinally. In this connection, it has beenfound that under continuous use, the discharge end, that is, the tyingend, of the quill wears down at the ends of the groove or guide meansfor the warp wire, with the result that the Warp wires are not held inthe proper position for the tying operation. This results in the screenlosing some of the desired optical characteristics due to the fact thatthe wires will improperly feed from the end of the worm quill and theresulting wire fabric will have an irregular weave therein.

It is an object of this invention to provide a construction in which thequill may be removed from the machine, filed, cut, or ground into thedesired form across the end, and then replaced in the machine andproperly adjusted 1ongitu dinally.

It is an object of thi invention to provide a quill construction with anovel clamping means retaining it in any desired position in themachine.

It is likewise an object of this invention to provide a construction inwhich the quill is-adjustable 'arcuately. In this connection, it is anobject to compensate for backlash which may be developed by excessivewear of th gears and parts, so that the guide channels for the warpwires are always in. the desired position with respect to the wearingmeans.

It is another object of this invention to provide a readily releasableholding means which makes it possible to adjust the quill eitherarcuately or axially or both, as may be desired, and hold'the quill inthe adjusted position with respect to the pinion.

It is a further object to disclose a construction which is relativelyinexpensive, easily manufactured, easily manipulated by use of a smallwrench or screw-driver, and which has means securely retaining thedevice in the adjusted position.

Other objects, the advantages and uses of the invention will become moreapparent after reading the following specification and claims, and afterconsideration of the drawing forming a part of the specification,wherein:

Fig. 1 is a longitudinal sectional view of a luill embodying theinvention disclosed herein, which quill is indicated as installed in aweaving machine;

Fig. 2 is a fragmentary cross-sectional View taken on the line 2--2 ofFig.1 looking in the direction of the arrows; and

Fig. 3 is a fragmentary perspective view of a portion of the quill, theportion being the discharge end thereof.

Referring more in detail to the construction shown in the variousfigures, there is provided what may be termed the quill assembly 26;This quill assembly 20 is shown as mounted in the axle bore of a pinion22, so as to rotate with said pinion 22. The pinion 22 in turn isjournaled for rotation as a part of a weaving machine 24,and is drivenby the rack 26 in the well-known manner.

The Weaving machin 24 has the weaving head which includes a back plate28and a comb 30, the forward face of the back plate 28 and the adjacentoffset portion of, the face of, the comb 30 defining a guideway 32 forthe filler strand or ribbon-like element 34. v

The quill assembly proper comprises the quill rod 36, which is drilledand tapped as shown at 38. This drilled portion 38 is flared orchamfered at its outer end as shown at 40, and the quill rod '36 is cutlongitudinally, preferably to a relative position such as is indicatedby the saw cut 42. One or more saw cuts may be made if desired. Thesesaw cuts allow a portion of the quill rod to be expanded as hereinafterdescribed. I

The adjustment screw threads into the hollowed-out and tapped portion38; This adjustment screw 44 is provided with an enlarged head 46, whichis preferably beveled or shaped like a truncated cone, the head 46 beingadapted to engage the chamfered portion 40 of the quill rod 36 as theadjustment screw is threaded into the drilled and tapped portion 38. Asthe adjustment screw 44 is turned so as to thread it into the portion33, the head 46 engages the quill rod 36 as above explained and forcesthe quill rod to expand diametrically by spreading the saw cutssomewhat. and this expansion will result in the quill rod 36 engagingthe sides of the bore of the pinion 22 with a firm grip, which will holdthe quill rod 36 firmly in the position desired within the bore ofthepinion 22. v,

The drilled and tapped portion 38 maybe tapered very slightly throughoutmost or all of its length whereby, it will be expanded more uniformly bythe adjustment screw 44. Also, the ad- 3 justment screw 44 may betapered throughout its length a very slight amount for the same purpose,regardless of whether the drilled and tapped portion 38 is tapered.Preferably, both have a very slight taper, with the adjustment screwhaving an enlarged head portion as above described.

The adjustment screw 44 at its head portion 46 has a tool-engagingportion 48, by means of which a wrench or other tool may be used totighten the adjustment screw into position. It may be notched for ascrew-driver or provided with a socket, if desired.

The quill rod 36 is provided with the axially extending diametricallyopposed grooves or the like 50, which provide the channel means for thewarp wires 52.

The pinion 22 is provided with the pinion teeth or leaves 54 forengagement by the teeth 56 of the rack 26.

The operation of the device is as follows:

The quill rod 36 is inserted into the bore of the pinion 22 and is movedto the position desired, which is normally the arcuate position shown inFig, 2 wherein the warp wires 52 are one above the other inperpendicular alignment with the axis of the quill rod and thelongitudinal position shown in Fig. l, the quill rod having been movedlongitudinally until it extends to the predetermined position. It isthen held securely in place and the adjustment screw 44 is threaded intothe drilled and tapped portion of the'quill 38 until it seats againstthe sides of the drilled portion thereof and expands the quill intoengagement with the bore of the pinion 22. The adjustment screw 44 isthen firmly tightened into position and the quill assembly will besecurely held against movement relative. to the pinion 22.

The wires 52 are then threaded into position in the channel 50, and arecarried through the weaving head, performing the weaving operation in amanner such as is disclosed in United States Patent No. 2,223,317,issued to Ewing November 26, 1940. The rack 26 engages the leaves 54 ofthe pinion 22 for rotating said pinion and quill t."

assembly. The wires 52 should be aligned as above suggested, andfrequently the wear on the pinion teeth 54 and on the rack teeth 56allow a small amount of play which may be termed backlash, which causesthe quill to be stopped in its rotation at a position where these wires52 are not properly aligned with the slits in the comb. This will resultin the woven article having irregularities which are objectionable. Ac-

cordingly,it is possible to compensate for this I or removed and thequill is removed from the bore of the pinion. In case the ends havebecome worn, the quill may be ground off past the worn part so thegrooves again will present a square noted that for this purpose thequill may have been cut away in manufacture as shown at 58, which leavesless material to be ground away for squaring the ends. After the quillhas been repaired, it may be reinserted in the bore and fastened intoplace by tightening the adjustment It may well be such cases, theadjustment screw 44 is loosened 4 screw 44. In the event the quill needsto be aligned arcuately to compensate for wear of the rack and pinionteeth as above mentioned, this may be accomplished likewise by releasingthe adjustment screw 44, setting the quill at the desired arcuateposition, and again tightening the adjustment bolt 44, thus locking thequill assembly, in the desired position.

With this arrangement, it is also possible to replace the quill easilyand quickly.

, It will thus be seen that this quill arrangement provides aflexibility of operation and repair a which is not present in otherdevices for the same purpose.

While I have described my invention in connection with certain specificembodiments thereof, it is to be understood that this is by way ofillustration rather than limitation and that the invention is to bedefined by the appended claims which should be given a scope as broad ascommensurate with the prior art.

I claim:

1. As an article of manufacture, a quill comprising in combination meansreceiving material to be woven, a drilled and tapped end portion, anaxial split such as a saw cut in said drilled and tapped end portion,and means operable for axial adjustment of the quill including means forexpanding said drilled and tapped end portion.

'2. As an article of manufacture, a quill comprising in combinationmeans receiving material to be woven, a drilled and tapped end portion,an axial split such as a saw cut in said drilled and tapped end portion,and means operable for expanding said drilled and tapped end portion,said expanding means comprising an adjustment screw having an enlargedportion.

3. A quill assembly means for a weaving machine and the like comprisinga pinion mounted for rotation in said weaving machine, a bore in saidpinion, a quill rod removably inserted in the bore of said pinion, anadjustable means releasably retaining said quill rod in'the bore of saidpinion, said last-mentioned means comprising an expandible hollowed-outportion of said quill rod, 1

and adjustable means in'connection withsaid hollowed-out portion forexpanding and holding said quill rod in releasable engagement with saidpinion, whereby said quill rod is axially adjust,- able.

4. In a device of the class described, a quill rod removabl mounted in apinion, said quill rod having an axially extending drilled and tappedportion, a saw cut extending axially at least part way the length ofsaid drilled and tapped portion, means defining an adjustment screwthreaded into said drilled and tapped portion, adjustable for expandingsaid quill rod and thereby holding it in said pinion at a predeterminedposition, said means likewise being adjustable for returning said quillrod to normal, whereby said quill rod is released from said pinion. r

5. In a device of the class described, a quill rod assembly comprisingin combination a quill rod, a pinion having an axially extending bore,said quill rod being removably mounted in said pinion bore, an axiallyextending drilled and quill rod receiving a material to be woven, and

6. In a device of the class described, a quill rod mounted in a pinion,said quill rod having an axially extending drilled and tapped portion,an axially extending saw cut through at least a portion of said drilledand tapped portion, means comprising an expanding adjustment screwthreaded into said drilled and tapped portion, said last-mentioned meansexpanding said quill rod to engagement with said pinion whereby saidquill rod and said pinion means are releasably secured against movementrelative to each other.

CARL O. BRUESTLE.

